package com.cx.bank.util;

/**
* @author lenovo
*/
public class MD5 {

    private MD5() {

    }
    public static String encode(byte[] source) {

    String s = null;
    char hexDigits[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
    try {
        java.security.MessageDigest md = java.security.MessageDigest.getInstance("MD5");
        md.update(source);
        byte tmp[] = md.digest();
        char str[] = new char[16 * 2];
        int k = 0;
        for (int i = 0; i < 16; i++) {
            byte byte0 = tmp[i];
            str[k++] = hexDigits[byte0 >>> 4 & 0xf];
            str[k++] = hexDigits[byte0 & 0xf];
        }
        s = new String(str);
    } catch (Exception e) {
        e.printStackTrace();
    }
    return s;
    }

    public static String getMD5(String source) {
        return (source == null || "".equals(source)) ? "" : encode(source.getBytes());
    }

//    public static void main(String[] args) {
//        String md5 = MD5.getMD5("123");
//        System.out.println(md5);
//    }
}